This page presents the number of VTEC events issued by either all of the NWS or a selected WFO. These numbers are based on the IEM maintained archive and are not official. Please be careful of the presentation of zeros, as some VTEC products were only recently added and don't go back prior to 2005. The IEM retrospectively assigned VTEC events to some warnings prior to implementation in fall 2005. Note: the numbers shown are the unique combinations of VTEC event ids and WFO, so a single tornado watch event issued by four WFOs would count as four in this summary, when summarizing all WFOs!

Hopefully, you can copy/paste this table into your favorite spreadsheet program for further analysis...

Option 1: All VTEC Events by Year

Limit Numbers by WFO:

Option 2: Count of One VTEC Phenomena and Significance by WFO

Data for all WFOs shown

PSPhenomenaSignificance198619871988198919901991199219931994199519961997199819992000200120022003200420052006200720082009201020112012201320142015201620172018201920202021202220232024
AFYAshfallAdvisory0000000000000000000041711000100103000120
AQYAQ ((Invalid))Advisory000000000000000000000000100000000000000
ASOAir StagnationOutlook000000000000000000000001031200010000300
ASYAir StagnationAdvisory0000000000000000000175780171661710191311816111816324240
BHSBeach HazardStatement000000000000000000000000007616320326335246446546950445748649871
BSYBlowing SnowAdvisory00000000000000000004378127990000000000000000
BWYBrisk WindAdvisory0000000000000000000000102211181820000000000
BZABlizzardWatch0000000000000000000226416710251566662544241220000000
BZWBlizzardWarning000000000000000000018751101631771391421481381031008577114139979512311195
CFACoastal FloodWatch0000000000000000000023373853643539242549322960545034475351
CFSCoastal FloodStatement000000000000000000021591822542972651861509287101152167193303289182209240100
CFWCoastal FloodWarning00000000000000000000344949587152563035507255106647150688260
CFYCoastal FloodAdvisory0000000000000000000034126175254268292320288361432496486613685717557535760289
DSWDust StormWarning00000000000000000000342828223337312743202414934148991838119
DSYDust StormAdvisory0000000000000000000000000000000013365859728312526
DUWBlowing DustWarning0000000000000000000000000000000002397132
DUYBlowing DustAdvisory0000000000000000000313610211525837512366977448193151955814
ECAExtreme ColdWatch000000000000000000000000003000000000000
ECWExtreme ColdWarning0000000000000000000000000213010000100000
EHAExcessive HeatWatch000000000000000000025346311970107682114165053687887114841880
EHWExcessive HeatWarning0000000000000000000172766038130158141371978105801211371481671936070
EWWExtreme WindWarning0000000000000000000000000000001194034580
FAAFloodWatch00000000000000000000246277347276287368174289263227164230353292212216720783193
FAWFloodWarning000000000000000000000101149414771609198775017081294202714071759259424321746154511961288396
FAYFloodAdvisory0000000000000000000005585746747084857155664595729297962283539135110449016741610666973492091202
FFAFlash FloodWatch0000000000000000000041754061163265149634269267082055758272972555969977409
FFWFlash FloodWarning76349929314962518164714732293112719364146370046653046212124113199400947503302328543943881392440843732263344483511459334813520402836952878473443593692425
FGYDense FogAdvisory000000000000000000044099310821166123012141192138813011340141712091601150217091576159914161734779
FLAFloodWatch00000000000000000000563260173256320132199145128147290441313146125110173132
FLSFloodStatement000000000000000000000141000100011000000
FLWFloodWarning00000000000000000000087845314437446944441424386230115497341939885655675046093728248726221741
FLYFloodAdvisory000000000000000000000118467562489828151653463664388634712958672487456419106
FRYFrostAdvisory0000000000000000000193391422490575634530573647473511492445405413667586600570194
FWARed FlagWatch0000000000000000000180811251262949121811891196539664503659583713328735775878566243
FWWRed FlagWarning000000000000000000001121156617381287168416511801885105077610059761028525113611371310887337
FZAFreezeWatch00000000000000000004415623721724232721433028427920725416823021223525329133680
FZWFreezeWarning0000000000000000000185456546488550661480727637535440486481592454608510615596162
GLAGaleWatch0000000000000000000000243472495526508515505505632591605612709616666716332
GLWGaleWarning000000000000000000001148286495496795589791988111141058945978103497810711031508
HFAHurricane Force WindWatch000000000000000000000001002211221000002
HFWHurricane Force WindWarning0000000000000000000000000011244544000223
HIAInland Hurricane WindWatch0000000000000000000630102100000000000000
HIWInland Hurricane WindWarning0000000000000000000011102100000000000000
HSWHeavy SnowWarning0000000000000000000782572922150000000000000000
HTYHeatAdvisory0000000000000000000103244246159217631613510212169433529374594628647694108015592
HUAHurricaneWatch00000000000000000001004261579450131412102281170
HUSHurricaneStatement00000000000000000000002549915440005101010
HUWHurricaneWarning00000000000000000000012371096080121511101971040
HWAHigh WindWatch0000000000000000000134369353377303359457480289372278315368318353376441465371233
HWWHigh WindWarning0000000000000000000165540482682548549717697460568401489598480550569617727519317
HYSHydrologicStatement000000000000000000000102120000410100000
HYWHydrologicWarning000000000000000000000020200000011000000
HYYHydrologicAdvisory000000000000000000000000110000000000000
HZAHard FreezeWatch00000000000000000000011936953229265538182142212721531229
HZWHard FreezeWarning000000000000000000000143769167977173108764160864441651123756
IPYSleetAdvisory000000000000000000002000000000000000000
ISWIce StormWarning00000000000000000009128642351391050221815281436142937358
LBYLake Effect Snow and Blowing SnowAdvisory00000000000000000000925170000000000000000
LEALake Effect SnowWatch0000000000000000000264171522830332262372147120000000
LEWLake Effect SnowWarning00000000000000000003855104104645551319759336144731820271010
LEYLake Effect SnowAdvisory0000000000000000000781211911761351251067320711861106540000000
LOYLow WaterAdvisory0000000000000000000014303338413557515635446268495648692733
LSALakeshore FloodWatch0000000000000000000021220272240251037437461
LSSLakeshore FloodStatement0000000000000000000075696665220310015330000
LSWLakeshore FloodWarning000000000000000000001145391111103312384101161161
LSYLakeshore FloodAdvisory000000000000000000002014112311317724331642215322164
LWYLake WindAdvisory000000000000000000017553950372455547851643634836523528730723824730024620115658
MASMarineStatement00000000000000000002006449954811922455943000000000
MAWMarineWarning00000000000000031133663433348423953450317143794026373842274760386236174158456546624555507055965723548061581263
MFYMarine Dense FogAdvisory000000000000000000000069173203324316311397415276352438480388478500456209
MHYMarine AshfallAdvisory000000000000000000000000000000001000100
MSYMarine Dense SmokeAdvisory000000000000000000000001072100000000090
RBYSmall Craft for Rough BarAdvisory000000000000000000000013327430832025122525623227126220615600000
RPSRip CurrentsStatement000000000000000000000000100182250231304384415458517523582586634607190
SBYSnow and Blowing SnowAdvisory0000000000000000000732212983030000000000000000
SCYSmall CraftAdvisory000000000000000000000016623569372438223754399137743778419443544045419446034545455045061816
SEAHazardous SeasWatch00000000000000000000002359664758415345162520365049322616
SEWHazardous SeasWarning00000000000000000000003691957110379108121117111799010415411216471
SIYSmall Craft for WindsAdvisory000000000000000000000021950848844844837443131524925020513200000
SMYDense SmokeAdvisory0000000000000000000204241181645241562472322181811090
SNYSnowAdvisory000000000000000000028798311888500000000000000000
SQWSnow SquallWarning0000000000000000000000000000000070241163126306176300
SRAStormWatch00000000000000000000001018474061253233443631392935494142
SRWStormWarning00000000000000000000004350926396495766759070677968946054
SSAStorm SurgeWatch000000000000000000000000000000016141130111490
SSWStorm SurgeWarning00000000000000000000000000000001471125121250
SUWHigh SurfWarning0000000000000000000016222219291133212331472737392928214321
SUYHigh SurfAdvisory00000000000000000000167188250257300235254203226263303284294272283220281325163
SVASevere ThunderstormWatch00000000000000000001718611401173916081595171214481253114810341138106991214031054114911511525170
SVWSevere ThunderstormWarning6307563252167230818790619844106201287317023187931746622592176271876018121169832030720001210632411421137265612086819320254492015016758164271825018376186131769021101174361616018101242953092
SWYSmall Craft for Hazardous SeasAdvisory000000000000000000000033064666963658245554244748944232517000000
TIAInland Tropical Storm WindWatch000000000000000000017822531000000000000000
TIWInland Tropical Storm WindWarning000000000000000000051393561600000000000000
TOATornadoWatch000000000000000000012888691213128709261034577542535638372518400515444493509525229
TOWTornadoWarning99269575110501282130313581347145822072262219636552679218921892176303236002897282526594699323134454634241218311873232820492811202130612120244523202531662
TRATropical StormWatch0000000000000000000007462030242815162030343725663921230
TRWTropical StormWarning0000000000000000000007682257293519152642433830754626300
TSATsunamiWatch000000000000000000000000001002202011000
TSWTsunamiWarning000000000000000000000000032110002022110
TSYTsunamiAdvisory000000000000000000000000012122022032510
TYATyphoonWatch000000000000000000000002000016002200120
TYWTyphoonWarning000000000000000000000001000013002200020
UPAFreezing SprayWatch00000000000000000000005122629615403433732
UPWFreezing SprayWarning00000000000000000000001638183013434970303339632420582722
UPYFreezing SprayAdvisory00000000000000000000004333113548222342640824401010
WCAWind ChillWatch00000000000000000001192611131829634720111832125741333
WCWWind ChillWarning0000000000000000000933491116864762881196119547567119321121724370
WCYWind ChillAdvisory000000000000000000037187357446431449432207452878589297431469502253409684192327
WIYWindAdvisory0000000000000000000577169016622404185319392187214217091861129517181760154416881834168421551785991
WSAWinter StormWatch0000000000000000000179612699879726744665500594598547426528612741510587642601438
WSWWinter StormWarning0000000000000000000168489523825781871795618681742629551630744853558661702697498
WWYWinter WeatherAdvisory000000000000000000026258168115402049220821721711215822591843182319772557269920102179226220961296
ZFYFreezing FogAdvisory000000000000000000018246341801725044798679545570797482877140
ZRYFreezing RainAdvisory0000000000000000000741632291971771471171012332652211561250000000